Huawei P30
Android 9.0
Delete temporary data
When you use apps on your phone, various data is stored temporarily in the phone memory. If your phone runs out of memory, it may help deleting this data.
1. 1. Find "Apps"
Press Settings.
Press Apps.
Press Apps.
2. 2. Delete temporary data
Press the required app.
Press Storage.
Press CLEAR CACHE.
3. 3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.